Stainless Steel Custom 465-H1150 vs Custom 465-H900
Stainless Steel · Custom 465 temper comparison
Custom 465-H1150 and Custom 465-H900 are two conditions of the same stainless steel grade, Custom 465: H1150 (overaged 621 °C (1150 °F) for 4 h, maximum toughness) versus H900 (aged 482 °C (900 °F) for 1 h, peak hardness). The chemistry is identical, so every difference below comes from the condition. Custom 465-H900 is the stronger of the two: yield strength 1,690 MPa (245 ksi) against 1,170 MPa (170 ksi) for Custom 465-H1150, about 44% more; tensile strength follows at 1,790 MPa (260 ksi) vs 1,275 MPa (185 ksi). In exchange, Custom 465-H1150 is the more ductile: elongation 17% versus 11% for Custom 465-H900, and Custom 465-H900 is harder (51 HRC vs 40 HRC). Custom 465-H1150 runs hotter in service (450°C vs 400°C continuous). On the shop floor, Custom 465-H1150 machines more easily (32 vs 20 out of 100).
Custom 465-H1150Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Custom 465-H900Choose it when strength drives the design.
Custom 465-H1150 vs Custom 465-H900: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all stainless steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Custom 465-H1150Custom 465-H900
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.78 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,440°C2,624 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.4 µm/m·K5.8 µin/in·°F · Min Service Temperature -75°C-103 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 85 MJ/kg36,543 BTU/lb · Embodied Carbon (primary production) 5.6 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 35%
Strength versus weight
Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Custom 465-H1150 vs Custom 465-H900 — frequently asked
Is Custom 465-H900 stronger than Custom 465-H1150?
Yes. Custom 465-H900 has a typical yield strength of 1,690 MPa (245 ksi) against 1,170 MPa (170 ksi) for Custom 465-H1150 — about 44% more. Tensile strength is 1,790 MPa (260 ksi) vs 1,275 MPa (185 ksi).
Which condition does FabDigit quote by default, H1150 or H900?
Condition A is the default Custom 465 condition in the FabDigit quote flow (neither H1150 nor H900). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, Custom 465-H1150 or Custom 465-H900?
Custom 465-H1150, by a small margin. Both rate poor for machinability — 32/100 against 20/100 for Custom 465-H900.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Custom 465-H1150 and Custom 465-H900 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.